EP3603992B1 - Reifen für das fahren auf unwegsamem gelände - Google Patents

Reifen für das fahren auf unwegsamem gelände Download PDF

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Publication number
EP3603992B1
EP3603992B1 EP19186454.5A EP19186454A EP3603992B1 EP 3603992 B1 EP3603992 B1 EP 3603992B1 EP 19186454 A EP19186454 A EP 19186454A EP 3603992 B1 EP3603992 B1 EP 3603992B1
Authority
EP
European Patent Office
Prior art keywords
blocks
shoulder
crown
tyre
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19186454.5A
Other languages
English (en)
French (fr)
Other versions
EP3603992A1 (de
Inventor
Hinami YUKIKO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Publication of EP3603992A1 publication Critical patent/EP3603992A1/de
Application granted granted Critical
Publication of EP3603992B1 publication Critical patent/EP3603992B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1376—Three dimensional block surfaces departing from the enveloping tread contour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1272—Width of the sipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1369—Tie bars for linking block elements and bridging the groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0358—Lateral grooves, i.e. having an angle of 45 to 90 degees to the equatorial plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/10—Tyres specially adapted for particular applications for motorcycles, scooters or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C2200/00—Tyres specially adapted for particular applications
    • B60C2200/14—Tyres specially adapted for particular applications for off-road use

Definitions

  • At least one of the middle blocks and the shoulder blocks includes a stepped ground contacting surface including a first top surface and a second top surface having a smaller block height than the first top surface.
  • a carcass 5 and a belt layer 6 and the like are provided inside the tyre 1 in this embodiment.
  • Known configurations are appropriately used for these.
  • one of the middle regions (M) on a side of the first tread edge (Te1) may be referred to as a first middle region (M1)
  • one of the middle regions (M) on a side of the second tread edge (Te2) may be referred to as a second middle region (M2).
  • one of the shoulder regions (s) on a side of the first tread edge (Te1) may be referred to as a first shoulder region (S1)
  • one of the shoulder regions (s) on a side of the second tread edge (Te2) may be referred to as a second shoulder region (S2).
  • the first shoulder tie bars 16 and the second shoulder tie bars 17 configured as such restrain movement of the middle blocks 12 and the shoulder blocks 13 in the tyre axial direction and the tyre circumferential direction, therefore, the shearing force with respect to a soft road is increased. Furthermore, the first shoulder tie bars 16 and the second shoulder tie bars 17 configured as such are helpful for increasing the ground contact pressure on a hard road.
  • Each pair of the first shoulder tie bars 16 is formed by a first portion 16A connected with one of the middle blocks 12 on one side and a second portion 16B connected with one of the middle blocks 12 on the other side.
  • the first portion 16A and the second portion 16B are connected with the shoulder block 13 such that the first portion 16A and the second portion 16B are separated from each other without intersecting with each other.
  • Each pair of the second shoulder tie bars 17 is also formed by a first portion 17A connected with one of the shoulder blocks 13 on one side and a second portion 17B connected with one of the shoulder blocks 13 on the other side.
  • the first portion 17A and the second portion 17B are connected with the middle block 12 such that the first portion 17A and the second portion 17B are separated from each other without intersecting with each other.
  • the crown tie bars 20 include first crown tie bars 21 and second crown tie bars 22.
  • a pair of the crown tie bars 20 extends from each of the crown blocks 11.
  • a pair of the first crown tie bars 21 includes the crown tie bar 21 extending so as to be connected with one of the middle blocks 12 connected with one of the first shoulder tie bars 16 and the crown tie bar 21 extending so as to be connected with one of the middle blocks 12 connected with one of the second shoulder tie bars 17 adjacent to the first shoul der tie bar 16 in the tyre circumferential direction.
  • a pair of the second crown tie bars 22 extends so as to be connected with two middle blocks 12 each connected with a respective one of the first shoulder tie bars 16.
  • the second crown tie bars 22 in this embodiment are arranged on both sides in the tyre circumferential direction of each pair of the first crown tie bars 21 adjacent to each other in the tyre circumferential direction.
  • each of the shoulder blocks 13 extend axially outwardly from a circumferential edge (24a) arranged on a side of the tyre equator (c).
  • the axial portions 30 of each of the middle blocks 12 extend from a circumferential edge (24b) arranged on an outer side in the tyre axial direction toward the tyre equator (c).
  • Each of the crown blocks 11 is provided in a center portion thereof with a shallow bottom groove 35, therefore, it is divided into two block pieces 37.
  • the shallow bottom grooves 35 configured as such increase the edge components in the tyre circumferential direction of the crown blocks 11. It is preferred that a width (w5) of each of the shallow bottom grooves 35 is 5% or more and 25% or less of a width (w) of each of the crown blocks 11, and it is preferred that a depth (h4) (shown in Fig. 1 ) of each of the shallow bottom grooves 35 is 5% or more and 50% or less of the block height (H) of each of the crown blocks 11, for example.

Claims (10)

  1. Reifen (1) zur Fahrt auf unwegsamem Gelände, der einen Laufflächenabschnitt (2) umfasst, wobei
    der Laufflächenabschnitt (2) eine Vielzahl von Blöcken (7) und Laufflächen-Kreuzungsrillen (9) umfasst, die sich zwischen einer ersten Laufflächenkante (Te1) und einer zweiten Laufflächenkante (Te2) erstrecken, ohne die Vielzahl der Blöcke (7) zu schneiden,
    in einer Abwicklungsansicht des Laufflächenabschnitts (2) jede der Laufflächen-Kreuzungsrillen (9) einen Erdaustragsraum (9A) umfasst, der eine Breite (w1) von mindestens 10 mm oder mehr aufweist und sich linear erstreckt, so dass er eine Verbindung zwischen der ersten Laufflächenkante (Te1) und der zweiten Laufflächenkante (Te2) herstellt, und
    der Erdaustragsraum (9A) unter einem Winkel (α1) von 30 Grad oder mehr und 50 Grad oder weniger in Bezug auf die Reifenaxialrichtung geneigt ist,
    dadurch gekennzeichnet, dass
    die Laufflächen-Kreuzungsrillen (9) erste Rillen (9a) umfassen, die jeweils zu einer Seite in Bezug auf die Reifenaxialrichtung geneigt sind, und zweite Rillen (9b), die jeweils in einer entgegengesetzten Richtung zu den ersten Rillen (9a) geneigt sind.
  2. Reifen (1) zur Fahrt auf unwegsamem Gelände nach Anspruch 1, wobei die ersten Rillen (9a) und die zweiten Rillen (9b) abwechselnd in einer Reifenumfangsrichtung angeordnet sind.
  3. Reifen (1) zur Fahrt auf unwegsamem Gelände nach einem der Ansprüche 1 bis 2, wobei
    der Laufflächenabschnitt (2) einen Schulterbereich (S) und einen Mittelbereich (M) umfasst,
    der Schulterbereich (S) sich in der Reifenaxialrichtung von der ersten Laufflächenkante (Te1) nach innen erstreckt und eine Abwicklungsbreite von einem Sechstel einer Laufflächen-Abwicklungsbreite (TWe) aufweist,
    der Mittelbereich (M) auf einer Innenseite in der Reifenaxialrichtung des Schulterbereichs (S) angeordnet ist und eine Abwicklungsbreite von einem Sechstel der Laufflächen-Abwicklungsbreite (TWe) aufweist,
    die Vielzahl der Blöcke (7) eine Vielzahl von Schulterblöcken (13), die im Schulterbereich (S) angeordnet sind, und eine Vielzahl von Mittelblöcken (12), die im Mittelbereich (M) angeordnet und mit den Schulterblöcken (13) durch Schulteranbindungsstege (15, 16, 17) verbunden sind, umfasst,
    die Schulteranbindungsstege (15, 16, 17) erste Schulteranbindungsstege (16, 16A, 16B) umfassen, und
    zwei erste Schulteranbindungsstege (16A, 16B) von einem Schulterblock (13) ausgehen und mit verschiedenen Mittelblöcken (12) verbunden sind.
  4. Reifen (1) zur Fahrt auf unwegsamem Gelände nach Anspruch 3, wobei
    die Schulteranbindungsstege (15, 16, 17) zweite Schulteranbindungsstege (17, 17A, 17B) umfassen, und
    zwei zweite Schulteranbindungsstege (17A, 17B) sich von einem Mittelblock (12) erstrecken, so dass sie mit verschiedenen Schulterblöcken (13) verbunden sind.
  5. Reifen (1) zur Fahrt auf unwegsamem Gelände nach Anspruch 4, wobei die ersten Schulteranbindungsstege (16, 16A, 16B) und die zweiten Schulteranbindungsstege (17, 17A, 17B) abwechselnd in einer Reifenumfangsrichtung angeordnet sind.
  6. Reifen (1) zur Fahrt auf unwegsamem Gelände nach einem der Ansprüche 3 bis 5, wobei
    ein Winkel (θ1), der durch die beiden ersten Schulteranbindungsstege (16A, 16B) gebildet ist, die sich von einem Schulterblock (13) aus erstrecken, so dass sie mit verschiedenen Mittelblöcken (12) verbunden sind, und/oder
    ein Winkel (θ1), der durch die beiden zweiten Schulteranbindungsstege (17A, 17B) gebildet ist, die sich von einem Mittelblock (12) aus erstrecken, so dass sie mit verschiedenen Schulterblöcken (13) verbunden sind,
    weniger als 90 Grad beträgt.
  7. Reifen (1) zur Fahrt auf unwegsamem Gelände nach einem der Ansprüche 3 bis 6, wobei
    jeder der Schulterblöcke (13) und der Mittelblöcke (12) durch ein sich in der Reifenaxialrichtung erstreckendes Liniensegment (n1), das den Block (12, 13) in zwei gleiche Teile teilt, und ein sich in einer Reifenumfangsrichtung erstreckendes Liniensegment (n2), das den Block (12, 13) in zwei gleiche Teile teilt, virtuell in vier Blockabschnitte (b1, b2, b3, b4) unterteilt ist, und
    jeder der Schulteranbindungsstege (15, 16, 17), der einen Schulterblock (13) und einen Mittelblock (12) verbindet, mit einem der jeweiligen Blockabschnitte (b1, b2, b3, b4) sowohl des Schulterblocks (13) als auch des Mittelblocks (12) verbunden ist, so dass ein Abstand zwischen dem Schulterblock (13) und dem Mittelblock (12), die der Schulteranbindungssteg (15, 16, 17) verbindet, minimal ist.
  8. Reifen (1) zur Fahrt auf unwegsamem Gelände nach einem der Ansprüche 3 bis 7, wobei mindestens einer der Mittelblöcke (12) und der Schulterblöcke (13) eine abgestufte Bodenkontaktfläche (28) mit einer ersten oberen Fläche (25) und einer zweiten oberen Fläche (26), die eine geringeren Blockhöhe als die erste obere Fläche (25) aufweist, umfasst.
  9. Reifen (1) zur Fahrt auf unwegsamem Gelände nach einem der Ansprüche 3 bis 8, wobei
    der Laufflächenabschnitt (2) einen Kronenbereich (Cr) umfasst, der auf einer Innenseite in der Reifenaxialrichtung des Mittelbereichs (M) angeordnet ist und eine Abwicklungsbreite von einem Drittel der Laufflächen-Abwicklungsbreite (TWe) aufweist,
    die Vielzahl der Blöcke (7) eine Vielzahl von Kronenblöcken (11) umfasst, die in dem Kronenbereich (Cr) angeordnet sind, und
    in dem Kronenbereich (Cr) und dem Mittelbereich (M) in der Reifenaxialrichtung auf jeder Reifenumfangsrichtungslinie über die gesamte Länge mindestens einer der Kronenblöcke (11) oder mindestens einer der Mittelblöcke (12) angeordnet ist.
  10. Reifen (1) zur Fahrt auf unwegsamem Gelände nach Anspruch 9, wobei
    der Laufflächenabschnitt (2) einen weiteren Mittelbereich (M) umfasst, der auf einer Seite der zweiten Laufflächenkante (Te2) des Kronenbereichs (Cr) angeordnet ist und eine Abwicklungsbreite von einem Sechstel der Laufflächenentwicklungsbreite (TWe) aufweist,
    die Kronenblöcke (11) erste Kronenblöcke (11A), zweite Kronenblöcke (11B) und dritte Kronenblöcke (11C) umfassen,
    die ersten Kronenblöcke (11A) innerhalb des Kronenbereichs (Cr) angeordnet sind,
    jeder der zweiten Kronenblöcke (11B) über den Kronenbereich (Cr) und den Mittelbereich (M) hinweg auf einer Seite der ersten Laufflächenkante (Te1) angeordnet ist,
    jeder der dritten Kronenblöcke (11C) über den Kronenbereich (Cr) und den Mittelbereich (M) hinweg auf einer Seite der zweiten Laufflächenkante (Te2) angeordnet ist,
    ein erster Kronenblock (11A), ein zweiter Kronenblock (11B) und ein dritter Kronenblock (11C) eine Kronenblockgruppe (11G) bilden, und
    die Kronenblockgruppen (11G) in einer Reifenumfangsrichtung angeordnet sind.
EP19186454.5A 2018-08-01 2019-07-16 Reifen für das fahren auf unwegsamem gelände Active EP3603992B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018145262A JP7124531B2 (ja) 2018-08-01 2018-08-01 不整地走行用のタイヤ

Publications (2)

Publication Number Publication Date
EP3603992A1 EP3603992A1 (de) 2020-02-05
EP3603992B1 true EP3603992B1 (de) 2020-12-16

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US (1) US11697313B2 (de)
EP (1) EP3603992B1 (de)
JP (1) JP7124531B2 (de)
CN (1) CN110789277B (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7070233B2 (ja) * 2018-08-17 2022-05-18 住友ゴム工業株式会社 不整地走行用のタイヤ
JP7131381B2 (ja) * 2018-12-28 2022-09-06 住友ゴム工業株式会社 不整地走行用タイヤ
KR20220137015A (ko) 2020-02-07 2022-10-11 덴카 주식회사 형광체 플레이트 및 발광 장치

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Also Published As

Publication number Publication date
JP7124531B2 (ja) 2022-08-24
JP2020019401A (ja) 2020-02-06
US11697313B2 (en) 2023-07-11
US20200039299A1 (en) 2020-02-06
EP3603992A1 (de) 2020-02-05
CN110789277B (zh) 2023-01-31
CN110789277A (zh) 2020-02-14

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